Document Detail


Expression, localization, and biological function of the R3 subtype of receptor-type protein tyrosine phosphatases in mammals.
MedLine Citation:
PMID:  20633639     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The R3 subtype of receptor-type protein tyrosine phosphatases (RPTPs) includes VE-PTP, DEP-1, PTPRO, and SAP-1. All of these enzymes share a similar structure, with a single catalytic domain and putative tyrosine phosphorylation sites in the cytoplasmic region and fibronectin type III-like domains in the extracellular region. The expression of each R3 RPTP is largely restricted to a single or limited number of cell types, with VE-PTP and DEP-1 being expressed in endothelial or hematopoietic cells, PTPRO in neurons and in podocytes of the renal glomerulus, and SAP-1 in gastrointestinal epithelial cells. In addition, these RPTPs are localized specifically at the apical surface of polarized cells. The structure, expression, and localization of the R3 RPTPs suggest that they perform tissue-specific functions and that they might act through a common mechanism that includes activation of Src family kinases. In this review, we describe recent insights into R3-subtype RPTPs, particularly those of mammals.
Authors:
Takashi Matozaki; Yoji Murata; Munemasa Mori; Takenori Kotani; Hideki Okazawa; Hiroshi Ohnishi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-07-12
Journal Detail:
Title:  Cellular signalling     Volume:  22     ISSN:  1873-3913     ISO Abbreviation:  Cell. Signal.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-09-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8904683     Medline TA:  Cell Signal     Country:  England    
Other Details:
Languages:  eng     Pagination:  1811-7     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Inc. All rights reserved.
Affiliation:
Laboratory of Biosignal Sciences, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-Machi, Maebashi, Gunma 371-8512, Japan. matozaki@showa.gunma-u.ac.jp
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